The passage provides the strongest support for inferring that Lessing holds which one of the following views?

Hello, I was very confused as to why the answer in this example was not A. Not sure if I was looking deeper into the answer but I thought that since the passage was making a jump from having tall tulips in the garden = tall plants in the garden, that answer A would be correct since it was assuming all the dogs in the show are black just because all the poodles were black. I just need a clarification as to why the answer A is incorrect.